1111225505 has 16 divisors (see below), whose sum is σ = 1436750784. Its totient is φ = 820194240.

The previous prime is 1111225499. The next prime is 1111225523. The reversal of 1111225505 is 5055221111.

It is not a de Polignac number, because 1111225505 - 2⁶ = 1111225441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222890 + ... + 227820.

It is an arithmetic number, because the mean of its divisors is an integer number (89796924).

Almost surely, 2^1111225505 is an apocalyptic number.

It is an amenable number.

1111225505 is a deficient number, since it is larger than the sum of its proper divisors (325525279).

1111225505 is a wasteful number, since it uses less digits than its factorization.

1111225505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1111225505 is about 33335.0491975038. The cubic root of 1111225505 is about 1035.7797122725.

Adding to 1111225505 its reverse (5055221111), we get a palindrome (6166446616).

The spelling of 1111225505 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, five hundred five".